The default value for `tls_method` is `TLSv1`: https://kamailio.org/docs/modules/devel/modules/tls.html#tls.p.tls_method . This value is suboptimal as default.
Please change the default value to `TLSv1.2+` and remove `modparam("tls", "tls_method", …)` from misc/examples/outbound/edge_websocket.cfg and misc/examples/webrtc/websocket.cfg .